Patents by Inventor Lok Pui Calvin Tsang

Lok Pui Calvin Tsang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Electronic device having a tuned resonance haptic actuation system
    Patent number: 10556252
    Abstract: An electronic device includes an enclosure, a display positioned with the enclosure and defining a front face of the electronic device, and a haptic actuator positioned within the enclosure. The haptic actuator includes a housing comprising a wall and a movable mass positioned within the housing and configured to move within the housing to cause the haptic actuator to produce a vibrational response. The vibrational response includes a first component within a frequency range and a second component outside of the frequency range and providing a haptic output portion of the vibrational response. The haptic actuator also includes a tuning feature incorporated with the wall and configured to reduce the first component of the vibrational response while substantially maintaining the haptic output portion of the vibrational response.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: February 11, 2020
    Assignee: APPLE INC.
    Inventors: Lok Pui Calvin Tsang, Yu Chen, Qingguo Zhao, Weiqiang Fu, Hong Feng Wang, Chung Yin Au
  • ELECTRONIC DEVICE HAVING A TUNED RESONANCE HAPTIC ACTUATION SYSTEM
    Publication number: 20190084005
    Abstract: An electronic device includes an enclosure, a display positioned with the enclosure and defining a front face of the electronic device, and a haptic actuator positioned within the enclosure. The haptic actuator includes a housing comprising a wall and a movable mass positioned within the housing and configured to move within the housing to cause the haptic actuator to produce a vibrational response. The vibrational response includes a first component within a frequency range and a second component outside of the frequency range and providing a haptic output portion of the vibrational response. The haptic actuator also includes a tuning feature incorporated with the wall and configured to reduce the first component of the vibrational response while substantially maintaining the haptic output portion of the vibrational response.
    Type: Application
    Filed: December 19, 2017
    Publication date: March 21, 2019
    Inventors: Lok Pui Calvin Tsang, Yu Chen, Qingguo Zhao, Weiqiang Fu, Hong Feng Wang, Chung Yin Au